Feature: Support for Alternate DB Admin User

Goal: Technical

Description:

Normally there are fixed admin users for Oracle (SYSTEM) and for PostgreSQL (postgres).

However, there are scenarios where a different admin user is required. For example running the installation on a cloud provider.

In order to support that a context variable can be filled before running the setup script, so it is about to set something like:

export ADEMPIERE_DB_SYSTEM_USER=myCustomDBAdmin

And then run the setup script as usual.

Technical Info: IDEMPIERE-6648

NF12 Support for Alternate DB Admin User